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<pre><span class="sourceLineNo">001</span>package com.github.sarxos.webcam.ds.buildin;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span>import java.util.ArrayList;<a name="line.3"></a>
<span class="sourceLineNo">004</span>import java.util.Collections;<a name="line.4"></a>
<span class="sourceLineNo">005</span>import java.util.List;<a name="line.5"></a>
<span class="sourceLineNo">006</span>import java.util.concurrent.atomic.AtomicReference;<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>import org.bridj.Pointer;<a name="line.8"></a>
<span class="sourceLineNo">009</span>import org.slf4j.Logger;<a name="line.9"></a>
<span class="sourceLineNo">010</span>import org.slf4j.LoggerFactory;<a name="line.10"></a>
<span class="sourceLineNo">011</span><a name="line.11"></a>
<span class="sourceLineNo">012</span>import com.github.sarxos.webcam.WebcamDevice;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import com.github.sarxos.webcam.WebcamDiscoverySupport;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import com.github.sarxos.webcam.WebcamDriver;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import com.github.sarxos.webcam.WebcamTask;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import com.github.sarxos.webcam.ds.buildin.natives.Device;<a name="line.16"></a>
<span class="sourceLineNo">017</span>import com.github.sarxos.webcam.ds.buildin.natives.DeviceList;<a name="line.17"></a>
<span class="sourceLineNo">018</span>import com.github.sarxos.webcam.ds.buildin.natives.OpenIMAJGrabber;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>/**<a name="line.21"></a>
<span class="sourceLineNo">022</span> * Default build-in webcam driver based on natives from OpenIMAJ framework. It<a name="line.22"></a>
<span class="sourceLineNo">023</span> * can be widely used on various systems - Mac OS, Linux (x86, x64, ARM),<a name="line.23"></a>
<span class="sourceLineNo">024</span> * Windows (win32, win64).<a name="line.24"></a>
<span class="sourceLineNo">025</span> * <a name="line.25"></a>
<span class="sourceLineNo">026</span> * @author Bartosz Firyn (SarXos)<a name="line.26"></a>
<span class="sourceLineNo">027</span> */<a name="line.27"></a>
<span class="sourceLineNo">028</span>public class WebcamDefaultDriver implements WebcamDriver, WebcamDiscoverySupport {<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span>        static {<a name="line.30"></a>
<span class="sourceLineNo">031</span>                if (!"true".equals(System.getProperty("webcam.debug"))) {<a name="line.31"></a>
<span class="sourceLineNo">032</span>                        System.setProperty("bridj.quiet", "true");<a name="line.32"></a>
<span class="sourceLineNo">033</span>                }<a name="line.33"></a>
<span class="sourceLineNo">034</span>        }<a name="line.34"></a>
<span class="sourceLineNo">035</span><a name="line.35"></a>
<span class="sourceLineNo">036</span>        private static class WebcamNewGrabberTask extends WebcamTask {<a name="line.36"></a>
<span class="sourceLineNo">037</span><a name="line.37"></a>
<span class="sourceLineNo">038</span>                private AtomicReference&lt;OpenIMAJGrabber&gt; grabber = new AtomicReference&lt;OpenIMAJGrabber&gt;();<a name="line.38"></a>
<span class="sourceLineNo">039</span><a name="line.39"></a>
<span class="sourceLineNo">040</span>                public WebcamNewGrabberTask(WebcamDriver driver) {<a name="line.40"></a>
<span class="sourceLineNo">041</span>                        super(driver, null);<a name="line.41"></a>
<span class="sourceLineNo">042</span>                }<a name="line.42"></a>
<span class="sourceLineNo">043</span><a name="line.43"></a>
<span class="sourceLineNo">044</span>                public OpenIMAJGrabber newGrabber() {<a name="line.44"></a>
<span class="sourceLineNo">045</span>                        try {<a name="line.45"></a>
<span class="sourceLineNo">046</span>                                process();<a name="line.46"></a>
<span class="sourceLineNo">047</span>                        } catch (InterruptedException e) {<a name="line.47"></a>
<span class="sourceLineNo">048</span>                                LOG.error("Processor has been interrupted");<a name="line.48"></a>
<span class="sourceLineNo">049</span>                                return null;<a name="line.49"></a>
<span class="sourceLineNo">050</span>                        }<a name="line.50"></a>
<span class="sourceLineNo">051</span>                        return grabber.get();<a name="line.51"></a>
<span class="sourceLineNo">052</span>                }<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span>                @Override<a name="line.54"></a>
<span class="sourceLineNo">055</span>                protected void handle() {<a name="line.55"></a>
<span class="sourceLineNo">056</span>                        grabber.set(new OpenIMAJGrabber());<a name="line.56"></a>
<span class="sourceLineNo">057</span>                }<a name="line.57"></a>
<span class="sourceLineNo">058</span>        }<a name="line.58"></a>
<span class="sourceLineNo">059</span><a name="line.59"></a>
<span class="sourceLineNo">060</span>        private static class GetDevicesTask extends WebcamTask {<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span>                private volatile List&lt;WebcamDevice&gt; devices = null;<a name="line.62"></a>
<span class="sourceLineNo">063</span>                private volatile OpenIMAJGrabber grabber = null;<a name="line.63"></a>
<span class="sourceLineNo">064</span><a name="line.64"></a>
<span class="sourceLineNo">065</span>                public GetDevicesTask(WebcamDriver driver) {<a name="line.65"></a>
<span class="sourceLineNo">066</span>                        super(driver, null);<a name="line.66"></a>
<span class="sourceLineNo">067</span>                }<a name="line.67"></a>
<span class="sourceLineNo">068</span><a name="line.68"></a>
<span class="sourceLineNo">069</span>                /**<a name="line.69"></a>
<span class="sourceLineNo">070</span>                 * Return camera devices.<a name="line.70"></a>
<span class="sourceLineNo">071</span>                 * <a name="line.71"></a>
<span class="sourceLineNo">072</span>                 * @param grabber the native grabber to use for search<a name="line.72"></a>
<span class="sourceLineNo">073</span>                 * @return Camera devices.<a name="line.73"></a>
<span class="sourceLineNo">074</span>                 */<a name="line.74"></a>
<span class="sourceLineNo">075</span>                public List&lt;WebcamDevice&gt; getDevices(OpenIMAJGrabber grabber) {<a name="line.75"></a>
<span class="sourceLineNo">076</span><a name="line.76"></a>
<span class="sourceLineNo">077</span>                        this.grabber = grabber;<a name="line.77"></a>
<span class="sourceLineNo">078</span><a name="line.78"></a>
<span class="sourceLineNo">079</span>                        try {<a name="line.79"></a>
<span class="sourceLineNo">080</span>                                process();<a name="line.80"></a>
<span class="sourceLineNo">081</span>                        } catch (InterruptedException e) {<a name="line.81"></a>
<span class="sourceLineNo">082</span>                                LOG.error("Processor has been interrupted");<a name="line.82"></a>
<span class="sourceLineNo">083</span>                                return Collections.emptyList();<a name="line.83"></a>
<span class="sourceLineNo">084</span>                        }<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span>                        return devices;<a name="line.86"></a>
<span class="sourceLineNo">087</span>                }<a name="line.87"></a>
<span class="sourceLineNo">088</span><a name="line.88"></a>
<span class="sourceLineNo">089</span>                @Override<a name="line.89"></a>
<span class="sourceLineNo">090</span>                protected void handle() {<a name="line.90"></a>
<span class="sourceLineNo">091</span><a name="line.91"></a>
<span class="sourceLineNo">092</span>                        devices = new ArrayList&lt;WebcamDevice&gt;();<a name="line.92"></a>
<span class="sourceLineNo">093</span><a name="line.93"></a>
<span class="sourceLineNo">094</span>                        Pointer&lt;DeviceList&gt; pointer = grabber.getVideoDevices();<a name="line.94"></a>
<span class="sourceLineNo">095</span>                        DeviceList list = pointer.get();<a name="line.95"></a>
<span class="sourceLineNo">096</span><a name="line.96"></a>
<span class="sourceLineNo">097</span>                        for (Device device : list.asArrayList()) {<a name="line.97"></a>
<span class="sourceLineNo">098</span>                                devices.add(new WebcamDefaultDevice(device));<a name="line.98"></a>
<span class="sourceLineNo">099</span>                        }<a name="line.99"></a>
<span class="sourceLineNo">100</span>                }<a name="line.100"></a>
<span class="sourceLineNo">101</span>        }<a name="line.101"></a>
<span class="sourceLineNo">102</span><a name="line.102"></a>
<span class="sourceLineNo">103</span>        /**<a name="line.103"></a>
<span class="sourceLineNo">104</span>         * Logger.<a name="line.104"></a>
<span class="sourceLineNo">105</span>         */<a name="line.105"></a>
<span class="sourceLineNo">106</span>        private static final Logger LOG = LoggerFactory.getLogger(WebcamDefaultDriver.class);<a name="line.106"></a>
<span class="sourceLineNo">107</span><a name="line.107"></a>
<span class="sourceLineNo">108</span>        private static OpenIMAJGrabber grabber = null;<a name="line.108"></a>
<span class="sourceLineNo">109</span><a name="line.109"></a>
<span class="sourceLineNo">110</span>        @Override<a name="line.110"></a>
<span class="sourceLineNo">111</span>        public List&lt;WebcamDevice&gt; getDevices() {<a name="line.111"></a>
<span class="sourceLineNo">112</span><a name="line.112"></a>
<span class="sourceLineNo">113</span>                LOG.debug("Searching devices");<a name="line.113"></a>
<span class="sourceLineNo">114</span><a name="line.114"></a>
<span class="sourceLineNo">115</span>                if (grabber == null) {<a name="line.115"></a>
<span class="sourceLineNo">116</span><a name="line.116"></a>
<span class="sourceLineNo">117</span>                        WebcamNewGrabberTask task = new WebcamNewGrabberTask(this);<a name="line.117"></a>
<span class="sourceLineNo">118</span>                        grabber = task.newGrabber();<a name="line.118"></a>
<span class="sourceLineNo">119</span><a name="line.119"></a>
<span class="sourceLineNo">120</span>                        if (grabber == null) {<a name="line.120"></a>
<span class="sourceLineNo">121</span>                                return Collections.emptyList();<a name="line.121"></a>
<span class="sourceLineNo">122</span>                        }<a name="line.122"></a>
<span class="sourceLineNo">123</span>                }<a name="line.123"></a>
<span class="sourceLineNo">124</span><a name="line.124"></a>
<span class="sourceLineNo">125</span>                List&lt;WebcamDevice&gt; devices = new GetDevicesTask(this).getDevices(grabber);<a name="line.125"></a>
<span class="sourceLineNo">126</span><a name="line.126"></a>
<span class="sourceLineNo">127</span>                if (LOG.isDebugEnabled()) {<a name="line.127"></a>
<span class="sourceLineNo">128</span>                        for (WebcamDevice device : devices) {<a name="line.128"></a>
<span class="sourceLineNo">129</span>                                LOG.debug("Found device {}", device.getName());<a name="line.129"></a>
<span class="sourceLineNo">130</span>                        }<a name="line.130"></a>
<span class="sourceLineNo">131</span>                }<a name="line.131"></a>
<span class="sourceLineNo">132</span><a name="line.132"></a>
<span class="sourceLineNo">133</span>                return devices;<a name="line.133"></a>
<span class="sourceLineNo">134</span>        }<a name="line.134"></a>
<span class="sourceLineNo">135</span><a name="line.135"></a>
<span class="sourceLineNo">136</span>        @Override<a name="line.136"></a>
<span class="sourceLineNo">137</span>        public long getScanInterval() {<a name="line.137"></a>
<span class="sourceLineNo">138</span>                return 3000;<a name="line.138"></a>
<span class="sourceLineNo">139</span>        }<a name="line.139"></a>
<span class="sourceLineNo">140</span><a name="line.140"></a>
<span class="sourceLineNo">141</span>        @Override<a name="line.141"></a>
<span class="sourceLineNo">142</span>        public boolean isScanPossible() {<a name="line.142"></a>
<span class="sourceLineNo">143</span>                return true;<a name="line.143"></a>
<span class="sourceLineNo">144</span>        }<a name="line.144"></a>
<span class="sourceLineNo">145</span><a name="line.145"></a>
<span class="sourceLineNo">146</span>        @Override<a name="line.146"></a>
<span class="sourceLineNo">147</span>        public boolean isThreadSafe() {<a name="line.147"></a>
<span class="sourceLineNo">148</span>                return false;<a name="line.148"></a>
<span class="sourceLineNo">149</span>        }<a name="line.149"></a>
<span class="sourceLineNo">150</span>}<a name="line.150"></a>




























































</pre>
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